* {
  margin: 0;
  padding: 0;
}
body {
  background: #dadada;
}
#app {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  width: 1000px;
  margin: 100px auto;
}
#app .main-area {
  margin: 15px;
  margin-bottom: 30px;
  text-align: center;
}
#app .main-area h3 {
  padding: 20px;
  border: 1px solid #000;
  border-bottom: 0;
  background: -webkit-linear-gradient(-60deg, #ee64ee, #0094ff);
  background: linear-gradient(150deg, #ee64ee, #0094ff);
}
#app .operater-area {
  display: flex;
  justify-content: space-evenly;
}
#app .operater-area button {
  margin: 0 10px;
  padding: 6px 18px;
  background: -webkit-linear-gradient(-45deg, #009688, #007755);
  background: linear-gradient(135deg, #009688, #007755);
  font-size: 18px;
  color: #fff;
  outline: 0;
  border: 0;
  cursor: pointer;
  border-radius: 10px;
}
#app .operater-area button:hover {
  outline: 1px solid #fff;
  background: -webkit-linear-gradient(-45deg, #00aa88, #008855);
  background: linear-gradient(135deg, #00aa88, #008855);
}
table,
th,
td {
  border: 2px solid #000;
  border-collapse: collapse;
  text-align: center;
}
table {
  width: 1000px;
}
table td {
  width: 20px;
  padding: 10px;
  font-size: 16px;
  background-color: #eaeaea;
}
table td.selected {
  background-color: #0094ff !important;
  color: #fff !important;
  border-radius: 20px/20px;
}
table td.sp {
  background-color: #f00 !important;
  color: #fff !important;
}
table td.leader {
  font-weight: 700;
  background-color: #fff;
  color: #672;
  text-decoration: underline;
}
table td.teacher {
  padding: 6px;
  font-weight: 700;
  font-size: 20px;
  background: -webkit-linear-gradient(45deg, #32fa9b, rgba(20, 150, 255, 0.5));
  background: linear-gradient(45deg, #32fa9b, rgba(20, 150, 255, 0.5));
}
.show-area {
  width: 100%;
}
.show-area ul {
  margin-top: 30px;
  list-style: none;
}
.show-area ul li {
  padding: 5px;
  border-bottom: 1px dotted #000;
}
.show-area ul li:hover {
  background-color: rgba(255, 93, 0, 0.3);
}
